Odd 4K no start
Grant Lenahan
glenahan at vfemail.net
Sat Apr 5 11:15:36 PDT 2008
Gas + spark + air = bang. it may not bang smoothly, but it will bang.
So one of those is missing ( could of course be timing of the 3).
How did you check the spark - did you SEE a spark jump on a plug
removed from the motor? Did you measure the voltage on the plug lead?
Neither of those? Then you don;t really know you have spark. Also,
how do you know you have gas - did you pull a plug? The pump can
pump, yet the injectors dont dispense. Rare, but possible.
Grant
Grant
On Apr 5, 2008, at 1:25 PM, DK wrote:
> Very odd no start with my 87 4000. I have spark when cranking, new
> fuel pump
> that works (primes) and I can hear the fuel injectors when lifting
> the CIS
> plate. I can also smell the fuel when cranking after a while, and
> hear the
> fuel pump relay activating when turning the distributor. Double
> checked
> timing, which is dead on.
> Very confused what is going, and why it doesn't want to start... I
> have the
> Bentley but it is not helpful in this situation.
> I am not sure if it is the ignition ping on the flywheel (as per
> bentley) or
> something else? It is mentioned in the Bentley when replacing the
> flywheel,
> not to bend the pins. On my 20020v it makes sense, as it has
> sensors there,
> but not the 4k...?
>
> Here are some recent changes/replacements I made to the car.
> -clutch master & slave
> -coolant temp sensor
> -coolant sensor temp gauage
> -replaced wires on the transmission (reverse lights not working,
> but other
> cables where cut, so I thought might be something like a hall
> sensor or
> something...)
>
> earlier, about 2 weeks ago starting I thought the CIS had some
> troubles
> keeping up, but after some troubleshooting it seemed like it had some
> ignition issues... I reset timing and it started right up. So what
> it gong
> on?
>
> DK
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